Burner system.



W. M. FREEMAN.

BURNER SYSTEM.

APPLICATION FILED DEO.15, 1909.

Patented Feb. 4, 1913.

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tINITED STATES I ra rau'r semen WILLIAM M. FREEMAN, OF OSWEGO, NEW YORK, ASSIGNOR ONE-THIRD TO JOHN W. FLEMING AND ONE-THIRD T0 JAMES O. 'BRADEEN, BOTH 0F OSWEGO, NEW

YORK.

BURNER SYSTEM Specification 6f Letters Patent.

Patented Feb. 4, 1913.

Application filed December 15, 1909. Serial No. 533,181.

ments in oil feeder and burner systems involving the use of an oil reservoir or supply tank and burner together with a pipe leading from the interior of the tank to the burner and a pressure pipe also leading to the burner for receiving a fluid, as air, under pressure and projecting the same into the burner for the purpose of producing sufiicient suction at the junction of the oil supply pipe with the burner to draw the oil from the reservoir and project it in the form of a spray-jet to the point or points of ignition.

Heretofore so far as I am aware the practice has been to force the oil under air pressure or gravity to the burner thereby maintaining a constant pressure of the oil in the supply pipe and burner and causing more or less danger from explosion due to leakage in the piping system.

The primary object of my present invention is to obviate this danger by removing the oil pressure from the piping system and drawing the oil by suction from the reservoir to the burner as it is needed.

Other objects and uses relating to specific parts of the mechanisms will be brought out in the following description.

In the drawings: Figure 1 is an elevation partly in section of the preferred form of my oil feeder and burner system, the oil reservoir being shown in section. Fig. 2 is an enlarged sectional view of the burner shown in Fig. 1.

In carrying'out the objects stated, I provide an oil reservoir or tank -1 with a valved inlet pipe 2 and a vent-cock 3-, said reservoir being arranged in an upright position with its upper end closed by a suitable head 4- upon which the valved inlet -2 and vent 3 are sup ported. A siphon pipe -5, Fig. 1', has one leg 6- arranged within the reservoir 1- with its lower end in proximity to the bottom, as -7, with its upper end extending through a suitable opening 8- in the head 4, the otherleg, as 9, extend ing downwardly at the outside of the reser voir where it is connected by a pipe l0- to a suitable burner 11. The upper end of the leg -9- is provided witha valve 12 for regulating the supply of oil from the reservoir through the pipes 9 and 10 to the burner, as may be desired, or may be employed to shut off the oil supply when necessary.-

bLThe burner preferably comprises a chamr casing -l3- and a threaded valve 14-- which is adjustably screwedin one end of the casing 13 at substantially right angles to an inlet 15- to which the pipe 10' is connected.

The valve 14 is provided with a central lengthwise opening 16therethrough of comparatively small diameter and is connected by a pipe 17-; to a pressure tank 18 in which air or equivalent fluid is maintained under pressure byany suitable pumping means, not necessary to herein illustrate or describe. This fluid under pressure is projected through the pipe -17 and valve 14- in a comparatively small jet across the inlet 15- and into a suitablenozzle 19, the air pressure and relative position of the valve 14 and nozzle 19 being regulated so as to produce a suflicient suction to draw the oil from the reservoir through the pipe 10 and to project such oil in a fine jet through the nozzle -19 and into, a delivery tube 20 thereby 1 producing a combustible mixture of oil and air which is ignited at the mouth of the nozzle.

The inner end of the valve 1 1- is taered or pointed and projects into a simiarly tapering socket 21 in the adjacent end of the nozzle l9, the valve being adjusted so as to leave' a small clearance between the point of the valve and walls of the socket 21 capable of producing the desired suction at the inlet -l5 suflicient to draw the oil,as needed,from the reservoir '1. In like manner the end of the nozzle -19 is also tapered and projects into the adjacent flaring end 22 leaving sufiicient clearance around the mouth of the nozzle 19 to permit the entrance of atmospheric air into the flaring end of the delivery tube.

The nozzle and delivery tube are so relatively adjusted as to regulate the quantity into such delivery-tube.

of air admitted to the delivery tube at the point of ignition sufiicient to produce the desired combustion, it being understood that the force with which the air and oil is projected through the nozzle produces more or less suction at-the igniting point for drawing the desired amount of atmospheric air In order that the supply 'of air may be further regulated to give the most beneficial results, the pipe -17 is provided with aregulating valve 23 preferably near the burner.

In some instances it may be desired to vaporize or gasify the oil before entering the burner and for this purpose I have provided the pipe +10with a vaporizing coil -2 of somewhat reduced diameter and adapted to be heated'by any suitable-means such as an oil burner 25. As a further means forregulating the supply of oil or gas, the pipe 10 is provided with an ad-.

ditional valve 26 preferably located near the burner --11.

The operation of this invention will now be readily understood upon reference to the foregoing description and accompanying drawings.

What I claim is:

- In an oil burner system, a burner embodying a valve casing, a. pipe communicating with said casing, a regulating valve connected to said pipe, a vaporizing coil connected at one end to said regulating valve, a

heating element positioned beneath said coil, a pipe communicating with said vaporizing coil for supplying oil thereto, the diameter of the pipe forming the coil being less than the diameter of the oil supply pipe, and a regulating valve interposed in said oil supply pipe.

In witness whereof I have hereunto set my hand on this 11 da of December 1909. WILL M. FREEMAN. Witnesses:

W. J. HARPEN,

W. J. Tnmzorr. 

